DEN NORSKE STATS OLJESELSKAP A.S.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 3135
 
  
 
B63B SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 236
 
  
 
C10G CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION 260
 
  
 
E21B EARTH OR ROCK DRILLING 294
 
  
 
G01V GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 278
 
  
 
A61M DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY 1153
 
  
 
A62B DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING 136
 
  
 
B01D SEPARATION 1133
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6582589 Process for the catalytic dehydrogenation of a light alkaneNov 06, 01Jun 24, 03[C07C, C10G]
6434948 LNG load transfer systemAug 28, 00Aug 20, 02[F17C]
6136174 Compact electrostatic coalescerJun 03, 98Oct 24, 00[C10G]
D431781 BottleSep 10, 98Oct 10, 00[0901]
6069179 Method of conducting catalytic converter multi-phase reactionJan 17, 95May 30, 00[C07C]
D424447 BottleSep 10, 98May 09, 00[572-, 0901]
6022755 Regeneration of Fischer-Tropsch catalysts by using synthesis gas at a low flow rateJan 27, 98Feb 08, 00[H01L]
5877996 Transducer arrangementJul 15, 96Mar 02, 99[E21B, G01V]
5537995 Breathing system having breathing bag and supplemental gas dosing controlsOct 27, 94Jul 23, 96[F16K, A62B, A61M]
5468166 System for rotatably mounting a vessel to a loading buoyAug 08, 94Nov 21, 95[B63B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6967182 Catalysts consisting of metals on hydrotalcite-based carrier materials, and method for the preparation thereofExpiredDec 22, 99Nov 22, 05[B01J]
6834889 Torque release coupling for use in drill stringsExpiredSep 27, 02Dec 28, 04[F16L]
6714153 Device for electromagnetic detection of geological properties in a wellExpiredFeb 28, 01Mar 30, 04[G01S, G01V]
2003/0200,030 Method of processing acquired seismic dataAbandonedMay 09, 03Oct 23, 03[G01V]
6626240 Device for annular well isolationExpiredAug 16, 01Sep 30, 03[E21B]
6607043 Down hole motors and methods for their operationExpiredJul 02, 01Aug 19, 03[E21B]
6544420 Tube apparatus for outlet of liquid from a containerExpiredFeb 28, 01Apr 08, 03[C02F]
6525540 Method and device for detection of em waves in a wellExpiredFeb 13, 01Feb 25, 03[G01L]
6314900 High-velocity rudderExpiredJan 13, 00Nov 13, 01[B63H]
6267537 Riser bundleExpiredDec 23, 99Jul 31, 01[E21B]
6240160 System for inspection of pipelinesExpiredJun 14, 99May 29, 01[G01N]
6003603 Method and system for offshore production of liquefied natural gasExpiredAug 11, 97Dec 21, 99[E21B]
5997826 Reactor for catalytic dehydrogenation of hydrocarbons with selective oxidation of hydrogenExpiredAug 05, 97Dec 07, 99[B01J]
5984026 Pressure converterExpiredSep 30, 97Nov 16, 99[E21B]
5941325 Pressure converter (B)ExpiredSep 30, 97Aug 24, 99[E21B]
5934392 Pressure converterExpiredApr 08, 97Aug 10, 99[E21B]
5924498 Pressure converter IIIExpiredApr 11, 97Jul 20, 99[E21B]
5922925 Catalyst, and processes for dehydrogenating dehydrogenatable hydrocarbonsExpiredMay 18, 98Jul 13, 99[C07C]
5890547 Pressure converterExpiredApr 11, 97Apr 06, 99[E21B]
5817596 Catalyst, and processes for dehydrogenating dehydrogenatable hydrocarbonsExpiredDec 14, 95Oct 06, 98[B01J]

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